Sterilizer for dentistsj instruments



.(No Model.)

G. N..OLDHAM. STERILIZER FOR DBNTISTS' INSTRUMENTS. No. 581,407.PatentedApr. 2'7, 1897.

I 1i I i r 1v l l l I I i I t I I l"fl" |'|l"l" 0 0 o l l of' o O Jg ilf @.yi'. $144126 15 i i x o 5" l l 4 5 tlf;

klit* 4 i 815K messes rn: 'norms nus no, mfovuumo., wnsummow. o. c

UNITED STATES PATENT OFFICE.

GEORGE N. OLDI-IAM, OF ST. LOUIS, MISSOURI.

STERILIZER FOR DENTISTS INSTRUMENTS.

SPECIFICATION forming part of Letters Patent No. 581,407, dated April27, 1897. Appnmannarme,1396. saturo. 594,620. (Nomad.)

To all whom zz'; may concern:

Beit known that I, GEORGE N. OLDHAM, of St. Louis, State of Missouri,have invented certain new and useful Improvements in Dental Sterilizers,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in a dental sterilizer; and itconsists in the novel arrangement, construction, and combination ofparts, as will be more fully hereinafter described, and set forth in theclaim.

The object of my invention is to construct a device which is used by thedentists for the rapid sterilization of their instruments and thuspreventing the transmitting of disease germs from one person to another.As soon as the dentist or operator has finished operating on one personhe immediately sterilizes the instruments he used before operating onthe next patient.

Referring to the drawings, Figure 1 is a side view of my completeinvention. Fig. 2 is a vertical sectional view of the same, taken on theline AA of Fig. 3. Fig. 3 is an end view of my device, showing theopening in which the lamp is placed. Fig. 4 is a top plan view with thelid or cover removed. Fig. 5 is a perspective view of the movable pan inwhich the antiseptic solution is held. Fig. 6 is a perspective view ofthe wire strainer in which the small instruments are to be placed to besterilized.

In the drawings, 1 indicates an oval-shaped drum provided at its topwith a cover or lid 2, and in its lower portion and at one end is anopening 3. Said drum 1 is provided with a ridge 4,which extends aroundthe entire drum. Within said drum 1 and secured to both sides is apartition 5, which extends from the top of said drum 1 down to the ridge4, and said partition bent horizontally, making a horizontal partition6, thereby forming a receptacle 7 of itself and in which is adapted tobe placed the antiseptic sand 8.

At the lower right-hand edge of the receptacle 7 is an extension 9,formed by and being a part of the partitions 5 and 6, and upon saidextension 9 rests a movable pan 10. In said pan 10 is placed theconcentrated antiseptic solution 11. (See Fig. 2.)

Below the receptacle 7 and at a suitable distance from the bottom is adeflector 12, which is supported by a portion of itself bent downwardand secured to the walls of the drum, said detlectorforming a completeright angle and is for the purpose to prevent the heat passing into thechamber 13 beneath the pan 10.

Beneath the chamber 7 and deiector 12 is placed a lamp 14, gas-jet, orany other suitable device, which provides said sand with heat, as it isdesigned to heat said sand from 200O to 250o Fahrenheit.

Along the wall of the drum 1 and beneath the receptacle 7 are providedholes 15, which are to provide a draft for the light.

The operation of my invention is as follows: When the dentist oroperator has finished an operation on his patient, he places theinstruments that he has used into the antiseptic solution 11, movingthem therein, causing them to be washed. Then he takes them from saidsolution and dries them by placing them in the hot antiseptic sand.Should the instruments used be very small, said instruments are thenlaid into thewire strainer 16, and in like manner they are placed intothe antiseptic bath and then dried in the antiseptic sand, as beforementioned.

By the use of this device many diseases are prevented from beingtransmitted from one person to another, as the solution and sand are ofantiseptic qualities.

Having fully'described my invention, what I claim, and desire to secureby Letters Patent, is-

The improved dental sterilizer comprising the oval-shaped drum 1, havinga suitable lid or cover, said drum provided with a receptacle 7 at oneend and a removable pan 10 at the other, a delector 12 to prevent theheat from directly striking receptacle 7, and bent downward to interposebetween the heater and pan 10, a heating device located under thedeiiector and the walls being provided with suitable draft-holes,substantially GEORGE N. OLDHAM.

Witnesses:

GEO. F. LANE, ALFEED A. Ercxs.

IOO

